What should be done when a technician finds fluid levels low in an automatic transmission?

When a technician discovers that fluid levels are low in an automatic transmission, it is essential to verify the type of transmission fluid required before adding any fluid and to inspect the system for leaks. This approach ensures that the correct fluid is used, which is critical because different automatic transmissions require specific types of fluids that meet particular specifications. Using the wrong fluid can lead to transmission damage and performance issues.

Additionally, inspecting for leaks is crucial because low fluid levels can often indicate a leak in the system. Adding fluid without addressing a leak may result in the fluid levels becoming low again shortly after, which could lead to further complications. Thus, both verifying the type of fluid and inspecting for leaks are necessary steps to ensure the longevity and proper functioning of the automatic transmission. Therefore, the most thorough and effective action is to take both precautions before adding fluid.